646331356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{937}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 1260356832

約数和(自身を除く): 614025476

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 257, 514, 671, 937, 1028, 1342, 1874, 2684, 2827, 3748, 5654, 10307, 11308, 15677, 20614, 31354, 41228, 57157, 62708, 114314, 172447, 228628, 240809, 344894, 481618, 628727, 689788, 963236, 1257454, 2514908, 2648899, 5297798, 10595596, 14689349, 29378698, 58757396, 161582839, 323165678, 646331356]

約数ペア:

[(1, 646331356), (2, 323165678), (4, 161582839), (11, 58757396), (22, 29378698), (44, 14689349), (61, 10595596), (122, 5297798), (244, 2648899), (257, 2514908), (514, 1257454), (671, 963236), (937, 689788), (1028, 628727), (1342, 481618), (1874, 344894), (2684, 240809), (2827, 228628), (3748, 172447), (5654, 114314), (10307, 62708), (11308, 57157), (15677, 41228), (20614, 31354)]